Just to add, when finding and replacing all instances of Eclipse to Xclipse in /usr/lib/x86_64-linux-gnu/gtk-2.0/2.10.0/menuproxie/libappmenu.so, the app menu appears to be fixed, but every time f is pressed, Eclipse formats code instead of typing in an f.
Just to add, when finding and replacing all instances of Eclipse to Xclipse in /usr/lib/ x86_64- linux-gnu/ gtk-2.0/ 2.10.0/ menuproxie/ libappmenu. so, the app menu appears to be fixed, but every time f is pressed, Eclipse formats code instead of typing in an f.